Why is "finishing a computer language book" somehow the criteria for anything?
Computer knowledge is highly indexable and "look-upable". You can grasp things from fragments, as long as they're above the size of few paragraphs, say an article. Sometimes less.
There's no treasure at the end of a computer book. Especially a bad one, and frankly many are bad ones. Why? Because everyone fancies themselves a computer programming expert and is writing books. Many of the self-proclaimed gurus give terrible advice overall, like "Uncle Bob" for example. At the same time even expert advice becomes dated by the time a book title becomes popular.
It's not the 90s anymore.
